Which ORBI? AT&T Arris BGW210-700, need wpa3 and bridge, 4000 sq. ft.

[Threftlet]

I have AT&T Arris BGW210-700, need WPA3 and bridge, 4000 sq. ft. I need bridging because my new HP printer lets me choose either Wi-Fi or ethernet, not both. I figured I can bridge to my RG's wired network if I disable Wi-Fi on the ARRIS and set the ORBI to let the ARRIS assign the DHCP addresses, correct?

[schumaku]

The ARRIS ATT Arris BGW210-700 is a WiFi equipped 802.11bgnac 400mW Bonded VDSL2 Wireless Voice Gateway 4 x Gigabit Ports (ONT REQUIRED)

You have an AT&T subscription and Internet connection contract and a former AT&T two wire phone connection with an ONT?

[schumaku]

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@Threftlet wrote:

I figured I can bridge to my RG's wired network if I disable Wi-Fi on the ARRIS and set the ORBI to let the ARRIS assign the DHCP addresses, correct?

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Nope. Stick with the AT&T documentation, no guess and play. 

[Threftlet]

I don't have a 2wire. The 2wire was replaced by the Arris some time ago. In other words I'm not sure I understand your question about phone service. I don't use wireless for phone service related to the Arris RG. Phones can connect to Wi-Fi for data, maybe reinforcement for cellular, but the Arris is used for Digital Home Phone, which was formerly an analog land line. That phone config provides cordless service, not wireless.

[Threftlet]

Thanks. The service schema I outlined in no way contradicts instructions provided by AT&T's documentation. I did it for years with an Apple Airport Extreme (bridging Wi-Fi to DHCP provided by the RG, no Wi-Fi provided by RG), but now that Airport Extreme is no longer an active product, my intention is to replace it. I'm looking for a robust Wi-Fi mesh system. I have two alternatives: bridging to RG's DHCP as I did with the Airport Extreme, or using the replacement system as extenders for the RG's Wi-Fi. Does that provide the explanation needed?

[schumaku]

it contradicts to any normal network design. You talk to an network engineer here dealing with the fastest real IP networks in the area and used to deal with 100GbE/40GbE/25GbE/10GbE the subject Orbi systems can handle 10 GbE, 5 GbE, 2.5 GbE wired backhaul and performing wireless backhaul connections on 5 GHz 1GbE/25GbE/10GbE/on SMB and home networks, doing  and just released from the hospital following a brain surgery having to read about bridged WiFi - seriously, this is something ATT offers to the poor customers over there? Sorry, i can't develop much (read: any) motivation for such a **** design. This is like to put the cart before the horse. this is why there was no future for Apple networking. 8-)

[Threftlet]

Thanks for your help. Sorry to hear that you required brain surgery, I hope recovery is quick and complete!